I just learned this fun fact from the Malheur National Forest Ranger District:
Roads End Trail #201A is entirely an old roadbed that has been converted to trail. The trail/roadbed ends at a three-way trail intersection (with the other trails being Pine Creek Trail #201 & Onion Creek Trail #368). Hence, the "Roads End" name is not in reference to the trailhead location, but rather the top-end of the trail/roadbed itself.